pyridine

2 ENTRIES FOUND:

pyr·i·dine

noun \ˈpir-ə-ˌdēn\

Definition of PYRIDINE

:  a toxic water-soluble flammable liquid base C5H5N of pungent odor that is the parent of many naturally occurring organic compounds and is used as a solvent and as a denaturant for alcohol and in the manufacture of pharmaceuticals and waterproofing agents

Origin of PYRIDINE

pyr- + -ide + 2-ine
First Known Use: 1851

pyr·i·dine

noun \ˈpir-ə-ˌdēn\   (Medical Dictionary)

Medical Definition of PYRIDINE

: a toxic water-soluble flammable liquid base C5H5N of pungent odor that is the parent of many naturally occurring organic compounds and is used as a solvent and a denaturant for alcohol and in the manufacture of pharmaceuticals (as antiseptics and antihistamines) and waterproofing agents

pyridine

noun    (Concise Encyclopedia)

Any of a class of aromatic compounds with a six-member aromatic ring composed of five carbon atoms and one nitrogen atom, making it a heterocyclic compound. The simplest one is pyridine itself (CHN). Natural compounds with pyridine rings include niacin and pyridoxine (see vitamin B complex), the tuberculosis drug isoniazid, and several plant products (e.g., nicotine). Pyridine is used as a raw material for various drugs, vitamins, and fungicides and as a solvent. Because it has a nauseating odour and a burning taste, it is added to ethanol and antifreezes to make them undrinkable (see denaturation).

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